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How does chalk change after it has been shaken?
After a piece of chalk is pounded by a fist or rolling pin or other object it normally get crushed and turns into lumpy powder.
What has the larger surface area a lump of chalk or chalk powder?
Chalk powder has a larger surface area compared to a lump of chalk. This is because the process of grinding chalk into powder increases the total surface area exposed to the surrounding environment. As a result, the smaller particles of chalk powder provide more surface area for reactions, interactions, or absorption than a single lump of chalk.
What is the best formula for making gymnastics or weightlifting chalk?
A common formula for making gymnastics or weightlifting chalk involves mixing magnesium carbonate with alcohol, such as rubbing alcohol, to create a paste. This paste can then be dried and crushed into a powder to be used as chalk for better grip during activities.
By which process can you separate a mixture of naphthalene and chalk powder?
Sublimation can be used to separate naphthalene from chalk powder. Naphthalene sublimes at room temperature, while chalk powder does not, allowing for the separation based on this difference in physical properties.
What is chalk powder?
Chalk powder is a fine powder made from crushing and grinding natural chalk into a soft, white substance. It is commonly used in various applications, such as in classrooms for writing on chalkboards, in sports for marking playing fields, and in recreational activities like rock climbing.
Is breaking a lump of chalk to make powder a chemical reaction?
Breaking a lump of chalk into powder is a physical change, not a chemical reaction. The chemical composition of the chalk remains the same before and after breaking it into powder.
What is the chemical formula of chalk?
Chalk is CaCO3. The chemical name for chalk is calcium carbonate. It is a porous sedimentary rock, and is also a type of limestone. The White Cliffs of Dover are actually made from chalk.
What is the chemical formula for chalk calcium and carbonate?
calcium cation = Ca2+ carbonate ion = CO32- the charges should cancel and you have the correct formula
Chalk reacts with hydrochloric acid when mixed Will pounding the chalk into powder increase the rate of reaction?
Yes, pounding chalk into powder will increase the rate of reaction with hydrochloric acid. This is because crushing the chalk into a powder increases its surface area, allowing more of it to come into contact with the hydrochloric acid and react.
What has more friction polished wood or chalk powder or marble?
Chalk powder
How does chalk change after it has been shaken?
After a piece of chalk is pounded by a fist or rolling pin or other object it normally get crushed and turns into lumpy powder.
Chemical name of precipitated chalk?
The chemical name of precipitated chalk is calcium carbonate. It is a white, odorless powder that is commonly used in industries such as pharmaceuticals, food production, and in the manufacture of paper and plastics.
What has the larger surface area a lump of chalk or chalk powder?
Chalk powder has a larger surface area compared to a lump of chalk. This is because the process of grinding chalk into powder increases the total surface area exposed to the surrounding environment. As a result, the smaller particles of chalk powder provide more surface area for reactions, interactions, or absorption than a single lump of chalk.
Which acid or base is present in chalk powder?
Chalk is neutral.
Can filter paper separate chalk powder?
No, filter paper is not suitable for separating chalk powder. Chalk powder is insoluble in water, so it will not pass through the filter paper when mixed with water. To separate chalk powder from water, you can use techniques like sedimentation or decantation.
What is the best formula for making gymnastics or weightlifting chalk?
A common formula for making gymnastics or weightlifting chalk involves mixing magnesium carbonate with alcohol, such as rubbing alcohol, to create a paste. This paste can then be dried and crushed into a powder to be used as chalk for better grip during activities.
Limestone is the chemical content of chalk?
Limestone and chalk, together with marble and egg shells, are both impure form of calcium carbonate. The impurites are different in each substance, but only in small/trace amounts.
